Why do I value the acceptance of an online community like PerC more than the acceptance of the people in my real life community?
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Why is it that sometimes the opinion of an anonymous group of people is more important then the opinions of close friends?
If I may guess? ^^;
First of all, PerC is as anonymous as you let yourself be. I would say there are at least two types of anonymity in this context: absolute and relative. Absolute anonymity is easy: you don't tell your name, your age, your sex, relationship status, you don't show pictures of yourself, etc etc.
Relative anonymity is the mask that we wear when we release information about ourselves through posting and starting threads: we share our opinions, our experiences, worries, happiness, doubts, joy, musings, wonderings, fantasies, philosophies, etc etc. These things are really close to our being. Therefore we share a big deal of us without actually revealing ourselves. It's a grey kind of anonymity.
There may be things that you prefer sharing with anonymous people rather than the people you know IRL.
Second, if you're an INFP and you frequent the INFP forums a lot, you will come across a lot of people who go through the same things you do, think (about) and feel the same things, have the same kind of interests etc. Needless to say, you'll be able to relate a lot with people who seem to be like you.
What's more, the people on the INFP forums don't see you - they only see what you reveal. They don't see how you behave at work - like, whether you get irritated quickly, if you are ambitious, if you're helpful, if you got great teamwork spirit etc etc. I don't think it is that you don't value your coworkers' and RL friends' opinions, I don't think that you feel that they disappoint you or fail you either - it is just that they have seen you for real, rather than what people on forums see of you. The forum people see you through your lens, the others don't. Therefore you may feel the forum people may be better judgers or sources of opinion - because you feed them what you reveal of yourself, what you think is important ( = through your lens). The forum people are selectively informed, so to speak.
So... Relative anonymity, tendency to find and like similar minded people, selective information, yeah I would factor these things as reasons why the opinion of an anonymous group of people may be more important to you at times.
Note 1: You = anyone reading this.
Note 2: I didn't mention 'right' and 'wrong', for the very reason that finding the opinion of an anonymous group of people may be either right and/or wrong.